Rewterz Threat Alert – APT Group Gamaredon aka Shuckworm – Active IOCs

Severity

High

Analysis Summary

huckworm APT – aka Actinium, Armageddon, Primitive Bear, Gamaredon, and Trident Ursa – is a Russia-backed advanced persistent threat (APT) that has been operating since at least 2013. This cyber-espionage group is known to target government, military, and other high-value targets, primarily in Ukraine and has been linked to several advanced persistent threats (APT) campaigns. The main goal of this APT is to use the malicious document to gain control of the target machine. The exploit document uses the template injection technique to infect the victim’s computer with further malware. When the document is opened, it connects to the hacker’s server and downloads the payload file. Gamaredon’s tools are simple and designed to collect sensitive information from hacked systems and propagate it further. Its information-gathering efforts are nearly comparable to those of a second-tier APT, whose primary purpose is to collect and disseminate information with their units. The Gamaredon APT group’s recent attack leverages a decree document from the Russian Federation government as bait. In July, this APT group targets Ukrainian entities with PowerShell info-stealer malware dubbed GammaLoad.

Gamaredon APT is particularly known for its ability to steal sensitive information from its targets, including intellectual property, confidential documents, and login credentials. In some cases, the group has also been observed exfiltrating large amounts of data from its targets over extended periods of time.

It is important for organizations to be aware of the threat posed by Gamaredon APT and to implement appropriate security measures to protect against this group and other advanced persistent threats. This may include implementing strong security controls, regularly monitoring network activity for signs of compromise, and using advanced threat detection and response technologies.

Impact

• Template Injection
• Exposure of Sensitive Data

Indicators of Compromise

Domain Name

61deceptive.remmaoso.ru

MD5

• e36b2b2c3f9411a8e296e38c9522bd3e
• 3e6c41eb7d70ea37972d029994ce3e02
• ce1e0396a3bc4cb819a9719407cd7af9
• 7d886980e850e187ed10bfe86236da4a
• 976c06c10b508ffaff38db8c45203df6

SHA-256

• 83a4ac741a6947a9e22124ae6162b91afe1f89f22ce8b4b16935b4edd6984404
• 70d718f1c7a97723bc107b29c110f65fdd887e467711e0bba947ecd8e8cd032b
• 4cbb8ccd1777181ceb79d83422c8b8e959bf31cf74b9fe7f2619812ea06a9633
• f9e9b542cbd7b1e01527045db92556ddaba3b35cbcee10c52fe6f2a585bf345c
• 66687a10607f1b86e7a0f67779424674a050a2e8cbd6b1b0b1e9bf0b5190aae6

SHA-1

• b2a5a9e5aacc0724335c216d1c87b4fa78b04ac0
• 40f1f4365976c431896a016c9a6a314b0c8093f5
• 6d37a2bae90f6817f9aa5e2b2797ab904ef3a675
• 4d982a2fbc30711e3eb2ca5286e4521d0d64a1fa
• 90e1e19a48504eff59fa6b1bfe6d86a1cfec6d70

URL

• http://45.95.232.148/inches20/index.html=?20
• http://45.95.232.148/insecure23/index.html=?23

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Emails from unknown senders should always be treated with caution.
• Never trust or open links and attachments received from unknown sources/senders.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.